Air conditioning, fans, and anything related to keeping it cool, such as insulation. This would include any posts generally discussing how to keep it cool, such as which types of blocks are better insulators.... ideal wall thickness for keeping an A/C house cool, etc.

seems like white colourbond metal sheet roofing combined with pu foam insulation is the way to go.

funny enough, I came across something similar this afternoon, a chap painted his roof tiles white.

next I want to work on ventilation and air-flow within the home, some talk of a central house-fan, to re-place the internal air every few minutes, a solar chimney can achieve the same thing, however it only works from around midday onwards.

arranp wrote:seems like white colourbond metal sheet roofing combined with pu foam insulation is the way to go.

funny enough, I came across something similar this afternoon, a chap painted his roof tiles white.

next I want to work on ventilation and air-flow within the home, some talk of a central house-fan, to re-place the internal air every few minutes, a solar chimney can achieve the same thing, however it only works from around midday onwards.

Solar tower works 24/7 as it is an opening up high, warm air going up and cooler air replacing it. with a wirly-bird on top it also works on windy days with no sun..consider a fan at your ground floor level with a temperature controlled relay switching it on to push cool air into the house at night in combination with the solar tower. (got the relay, fan and tested it, waiting for some time to install it. Relay works on 5 volt, so I only need a phone charger to supply it. The other end will control a 220v Fan in the wall.)

31.0*C / 87.8*F ambient air temp (taken from thermometer fixed on shaded balcony)29.5*C / 85.1*F water temperature from pool exposed to direct sunlight26.5*C / 79.7*F water temperature from concrete water tank under house ( few thousand litres )

any suggestions ?

My thoughts : run x number of metres of air pipe coiled around the base of the concrete tank under the house. The pipe inlet to take in ambient air, the pipe outlet to be several vents several at the floor of the house.